54AC16822, 54ACT16822
74AC16822, 74ACT16822
20-BIT D-TYPE FLIP FLOPS WITH 3-STATE OUTPUTS
SCASS402 - JUNE 1990

features

• Members of Texas Instruments Widebus^TM Family
• Packaged in Shrink Small-Outline 300-mil Packages (SSOP) and 380-mil Fine-Pitch Ceramic Flat Packages Using 25-mil Center-to-Center Pin Spacings
• Inputs are TTL- or CMOS-Voltage Compatible
• 3-State Outputs Drive Bus Lines Directly
• Flow-Through Architecture Optimizes PCB Layout
• Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
• EPIC^TM (Enhanced-Performance Implanted CMOS) 1-m Process
• 500-mA Typical Latch-Up Immunity at 125°C

description

The 'AC16822 and 'ACT16822 are inverting 20-bit D-type flip-flops composed of two 10-bit sections with separate control signals. For either 10-bit flip-flop section, the inverse of the data present at the corresponding D inputs is stored in the flip-flops on the rising edge of the clock input (1CLK or 2CLK) and appears on the appropriate Q outputs if the output enable 1 (or 2) is low. If 1 (or 2) is high, the outputs are in the high-impedance state. 1 (or 2) does not affect the operation of the flip-flops. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state.

The 74AC16822 and 74ACT16822 are packaged in TI's shrink small-outline package (SSOP) with 25-mil center-to-center pin spacings. This package provides twice the I/O pin count and functionality of a standard small-outline package in the same printed-circuit-board area.

The 'AC16822 has CMOS-compatible input thresholds. The 'ACT16822 has TTL-compatible input thresholds.

The 54AC16822 and 54ACT16822 are characterized over the full military temperature range of -55°C to 125°C. The 74AC16822 and 74ACT16822 are characterized for operation from -40°C to 85°C.